Organix

High tech carbon nano tubes combined with cellulose as the base material. The material loads up with energy during ball impact, and releases it back again immediately. The power of carbon nano tubes with the feel and dampening of natural material. Due to the explosive springboard effect of organix material, frames receive more dynamics and power. Has better handling, due to its extraordinary vibration-absorbing properties.

Optispot

A visual support for hitting the ball in the center of the sweet spot. A highly contrasting optic field helps the eye to focus on the hitting zone while keep your attention on the ball. The result is enhanced hand-eye coordination.

General Information

Technologies

Organix: High tech carbon nano tubes combined with cellulose as the base material. The material loads up with energy during ball impact, and releases it back again immediately. The power of carbon nano tubes with the feel and dampening of natural material. Due to the explosive springboard effect of organix material, frames receive more dynamics and power. Has better handling, due to its extraordinary vibration-absorbing properties.

Optispot: A visual support for hitting the ball in the center of the sweet spot. A highly contrasting optic field helps the eye to focus on the hitting zone while keep your attention on the ball. The result is enhanced hand-eye coordination.

Bio Sensor: An active vibration dampening system which provides the player with unmatched feel and a 15% increase in dampening, which improves the playability of the racquet.

Tennizoom Users

Specifications

Head size

Tennis racquets typically come in three headsizes: midsize, midplus, and oversize. Guidelines say that a midsize racquet should offer 85–95 square inches of hitting area, a midplus racquet about 95–105 square inches, and an oversize racquet more than 105 square inches.Larger heads have more weight farther away from the long axis, making it difficult to move the racquet around it. The sweetspot is thus bigger on larger racquets: off-center hits on large racquets cause less twisting. But not always: smaller headsizes may have more weight nearer to the axis. On center-line hits, a larger racquet alone should not make any difference to the power. Indeed many mids and midpluses will provide very high power for hits along the center of the racquet because of their mass distribution. In fact, many so-called player’s racquets are near the top, and are usually characterized by higher weight and lower headsize, balance, and stiffness. It is the higher distribution of mass near the head that more than makes up the difference, resulting in higher power potential.

Length

Racquets are 27 to 28 inches in length. The longer the length of the racquet, the greater the leverage on a swing, and thus the greater power given to the shot. The advantages of longer racquets are extended reach (covering more of the court) and greater leverage on the serve, which generates more power. The main drawback of longer racquets is their reduced maneuverability and the greater difficulty controlling ball placement.

Strung weight

Weight is related to resistance to movement in a straight line. For example, the racquet resists your lifting efforts until you apply a force equal to its weight; only then can you lift it. You can feel the racquet’s weight by picking it up by the tip or handle, allowing the other end to hang down, or by picking it up at its balance point. Weight influences balance and swingweight, but it is rarely what the player experiences directly when interacting with the racquet.

Balance

The balance point of a racquet is the point along the racquet’s length where it can teeter and totter on a thin support (like the edge of a ruler) without falling over. If the racquet balances halfway along its length, it has even balance. Otherwise, the racquet is said to be “head-heavy”, when the shorter head “half” counter-balances the longer handle “half”, or “head-light”, when the shorter handle “half” counter-balances the longer head “half”. But these terms do not actually mean that one end is lighter than the other, but just that the mass is spread so that the short side of the balancing racquet behaves as if it were heavier: a smaller piece of weight at a greater distance from the balance point will counterbalance a larger piece of mass at a smaller distance from the balance point. In summary, the racquet behaves as if all its mass were located at the balance point (also called the center of mass). For evenly balanced racquets, the closer the balance point is to your hand, the less effort is required to hold the racquet horizontally to the ground by the handle. Balance can be measured in cm or inch.

Balance points

An alternate way of measuring balance. A 27 inch racquet is evenly balanced at 13.5 inches. If the balance point were at 12.5 inches, the racquet would be 1 inch, or 8 points, head-light; a 28 inch racquet with a balance point of 15 inches is 1 inch (or 8 points) head-heavy. Static balance ultimately affects swingweight (q.v.)—a dynamic measure of racquet maneuverability.

Stifness

A stiff racquet does not bend as much as a flexible one. Bending wastes energy, as the frame does not snap back before the ball leaves the strings. With the program above, you can see that frame stiffness seems to matter least just below the center of the racquet, and most near the tip. Near the center, at the “node of oscillation” (or “no vibration sweetspot”), the racquet will not bend when the ball hits it. At those locations, the program will list highly a few very soft frames with a lot of power. At the tip, where the frame wants to bend the most, stiffness is more important; here you will see stiffer frames at the top of the list.

Grip type

Even the smallest racquet details have noticeable effects on performance. For handle grips, leather is more or less obsolete because of its uneven friction resistance. Synthetic fabrics are now more widely used as they can be textured or patterned to improve friction. Texture analysis of various fabrics can be used to assess how different patterns of handle grip affect performance. The shaft connecting the racquet head to the handle is another important feature. Shaft flex ratings can be determined in a similar way to the head. A flexible shaft will better absorb shock, while a firmer shaft will deliver greater power by holding the head and strings correctly. Whatever their choice, players are affected by the flex of the shaft and the head; the characteristics of that flex vary by the materials used.

Composition

Until the 1970s, almost all racquet sports employed wooden racquets with leather gripped handles and natural gut strings. The introduction of aluminum and steel frames paved the way for increasingly lightweight and durable materials. Now most racquet frames are light-weight graphite or graphite composites, incorporating materials like titanium, Kevlar, and fiberglass. These increase frame flexibility, while remaining cost effective.

Composition

Organix / Carbon / Fiberglass

Extended Specifications

Swingweight

Much of a tennis hit can be seen as a battle between the player and the ball to move the racquet in a circle. Swingweight is the racquet’s resistance to movement in a circle. Circular motion occurs around the center or rotation—e.g. the handle’s butt. When you apply equal forces to the handles of racquets with different swingweights, the racquet with the higher swingweight will accelerate less and rotate slower. The lower swingweight racquet will accelerate more quickly. So higher swingweight means less maneuverability, and lower swingweight means more. The ball also applies a force to the racquet, so the lower the swingweight, the more easily the ball will move the racquet; the higher the swingweight, the less easily the ball will change the racquet’s motion. So the tradeoff is this: lower swingweight means greater racquet acceleration and final swing speed, but more shock—due to greater racquet deceleration and higher impact force due to greater speed. Higher swingweight results in slower racquet acceleration and final swing speed but less shock—there is less deceleration from the ball pushing the racquet in the opposite direction. Power is also affected. With lower swingweights, power must be generated more from the swing speed. At higher swingweights, more of the power comes from the racquet itself. The beauty of customization is that you can easily experiment and find the best tradeoff for your style of play.

Swing speed

Simply, how fast you swing the racquet. If you have a high swing speed, you generate more power and don’t need the racquet to do this. A high-powered frame will send the ball flying, and your shots will go far. If your swing speed is slower, you may need a racquet that generates more power. Adjusting string tension will also impact how the ball comes off the racquet, and can be used to fine-tune your “power setting”.

Power formula

Power level

The punch the racquet packs. A high power racquet will generate lots of pop on the ball, but will give less control; whereas a low power level racquet will leave it up to you to provide the power through a more aggressive swing—while giving you more control.

String pattern

The number of mains—strings running from handle to head—and crosses—strings running from left to right—in the string bed. A denser string pattern puts more strings in contact with the ball. If you want more control over your shots and are less concerned with power, you want a dense string pattern, such as 18 mains × 20 crosses. An open string pattern, like 14 mains × 18 crosses, gives more power but less control.

Stringing type

The choice of two or one-piece stringing is a matter of preference. Two-piece stringing holds tension better, and is recommend by all pro players. But to see the benefits of the two-piece tension retention, it must be tied with a very good knot. If you’re not comfortable with knots, or if you’re unsure of your ability with them, then one-piece may be the way to go for now.

Stringing tension (pounds)

Every racquet has a suggested string tension range. The manufacturer has tested the frame to determine the optimal range of tensions for best play and frame longevity. Generally, if you string at the lower end of the recommended range, the same stroke will make the ball fly farther. Low tension = deeper shots. High tension = shorter shots.

Stringing tension (kg)

Every racquet has a suggested string tension range. The manufacturer has tested the frame to determine the optimal range of tensions for best play and frame longevity. Generally, if you string at the lower end of the recommended range, the same stroke will make the ball fly farther. Low tension = deeper shots. High tension = shorter shots.

I have been playing with this racquet for 6 months.

I have been playing with this racquet for 6 months. The specs are perfect for me and when I get a good swing and solid contact there is a great blend of power and control. Spin generation is very good, especially on the serve. Volleys are very solid, except on balls hit on the top 25% of the string bed, which brings me to the one major flaw. The top 25% of the racquet is stone dead. Balls hit there go nowhere. Feel is like cardboard. The lower 75% is excellent and actually has a good size sweetspot. I will keep using this frame while trying to stay away from hitting with the top part.

This is an update to my previous review which mentioned

This is an update to my previous review which mentioned the poor response from the upper 25% of the frame. TW's own research indicated that only 17% of the force of the hit was returned by this section . Anyway, I added some lead tape to the 11 and 1 o'clock positions, bringing weight up to 12 ounces. The racquet performance has improved and I am pretty happy with the way the frame is performing. More solid power all around

This is a great racquet! I have ordered 2 and it should

This is a great racquet! I have ordered 2 and it should be my racquet for awhile. It is very manueverable, has tons of power and helps me hit pretty much any shot I want. I was a little skeptical about the oversized head because I have a one-handed backhand, but there is great plowthrough and I am really blasting my backhand for the first time in years. I had previously been using the lighter version X-7, but I've switched to the heavier version for both doubles and singles. Strung at 54 lbs with Volkl Cyclone Tour.

I'm very happy with this frame. For me, it plays a

I'm very happy with this frame. For me, it plays a lot 'smaller' than the specs would suggest, being easy to manoeuvre and whip around on aggressive strokes. The X-7 310 is also very stable when blocking back heavy shots and volleying. As expected, serving is a breeze with plenty of control available to help make the most of the considerable power offered. No issues with the stiffness rating, the racquet seems remarkably arm friendly after 3 weeks of pretty solid use. It's kind of like a PDR only with some Volkl 'feel' and no arm pain. I've made the switch, ordering another frame!

The positives and negatives of this racquet were about

The positives and negatives of this racquet were about equal in number for me. While most shots were comfortable, balls hit high in the stringbed reveal the 73 flex rating and are jarring. In the long run, I don't see this racquet as being arm friendly unless evey ball is hit perfectly. Power is good but some balls flew on me, more than with my own 105 inch frame. The almost-even balance makes it hard to maneuver, though my volleys felt very secure. And the spin was less than with my own (Exo Red) frame. Serving produced some good results. I think this one is an improvement on the PB-7 but still has its share of shortcomings.

I have had the chance to test a Volkl X-7 310g for

I have had the chance to test a Volkl X-7 310g for only one hour and I experimented a mix of feelings, some very positive and some negative. The most positive ones are related with the stability, power, control, plow through. This racquet is very solid, much more than expected with its head size. It is a fantastic combination of power, control and stability with extra help in the serve due to its extended length. Fantastic tweener racquet based on the positives. But I also had some negative feelings, and all of them are related with its poor maneuverability. The racquet is difficult to move, perhaps because of the combination of weight, beam size, head size, balance, and extended length. It seems not to be very aerodinamic and sometimes it is difficult to move in the air especially in quick interchanges. But once you can properly move the racquet, the experience with the Volkl X-7 310 is fantastic.

I would normally never play with anything over a 98,

I would normally never play with anything over a 98, but I tried this out after losing a bet. This racquet is incredibly stable, especially on volleys. The spin generation is amazing (strung with either full poly or all multi). At 104 square inches and 24mm, it feels soft and much smaller. It is really difficult to describe the feel with the thick beam and large head, but it hits with more spin then a Pure Drive and you are able to hit flat too. Traditional-style players should really enjoy it as well. I am getting one of my own and I've never kept a frame bigger than a 95. Wow!